BIOLOGY
17/18/19TH JULY 2025
CIRCULATION
COMPLETE THE FOLLOWING SENTENCES WITH THE CORRECT ANSWERS:
1) The study of blood is called __________________.
2) The human heart is located in a space called as_____________.
3) Atrio ventricular groove is called as _________________.
4) The oval opening in the interatrial septum of the fetus is called _________________.
5) The study of blood vessels is called as _______________.
6) The remnant of fetal oval opening in the interatrial septum of the adult heart is called
as _________________.
7) The amount of blood put out of the ventricles in one beat is called ______________
8) One cardiac cycle = ______________minutes.
9) Special tendons which provide additional support to the valves to close during
ventricular pumping are called _____________.
10) Cells which produce thrombocytes are called ___________________.
STATE THE FUNCTIONS OF THE FOLLOWING:
1 Erythrocytes:
________________________________________________________________________
________________________________________________________________________
________________________________________________________________________
________________________________________________________________________
2. Pericardium:
________________________________________________________________________
________________________________________________________________________
________________________________________________________________________
________________________________________________________________________
3. Valves in the heart:
________________________________________________________________________
________________________________________________________________________
_______________________________________________________________________
4. Pericardial fluid:
________________________________________________________________________
________________________________________________________________________
________________________________________________________________________
Match the following:
HEART VALVE LOCATION
1.Tricuspid valve a) Opening of coronary sinus
2 .Semilunar valve b) Base of pulmonary aorta
3.Bicuspid valve c) Opening of inferior vena cava
4.Thebasian valve d) Right atrioventricular septum
5.Eustachian valve e) Left atrioventricular septum
1 _______ 2 _______ 3______ 4_______
COMPLET THE EVENTS OCCURING DURING BLOOD CLOTTING:
INJURY TO THE BLOOD VESSEL
___________________________________________________________________________
RELEASE OF _________________________________________________________
CONVERSION OF _______________________________TO_________________________
IN THE PRESENCE OF ______________________ AND __________________________
FORMATION OF ________________________________ FROM
___________________________IN THE PRESENCE OF THROMBIN.
FORMATION OF A CLOT BY ENMESHING ____________________, BLOOD CELLS
AND PLASMA.THE TIME TAKEN FOR THIS PROCESS IS ________________.
COMPLETE THE FOLLOWING TABLES:
ERYTROCYTES LEUCOCYTES THROMBOCYTES
Increase in number
Decrease in number
Site of formation
Site of destruction
Life span
Function
STAIN NUCLEUS % FUNCTION DIAGRAM
NEUTROPHIL
BASOPHIL
EOSONOPHIL
LYMPHOCYTE
MONOCYTE
COMPLETE THE LABELLING OF THE GIVEN INTERNAL STRUCTURE OF THE HEART
1)
2)
3)
4)
5)
6)
7)
8)
9)
10)
11)
12)
13)
